This item is The Sharper Image Wireless Headphones (item SHP921).  These are still in the original box and have never been used.  They were originally priced at $50 but purchased for $20. 

Headphone features include:

• 100 Feet wireless range


• Easily connects to: TVs, Stereos, and MP3 Players


• Connect to a Computer for wireless music, or web chat with the integrated microphone


• Amazingly Clear Wireless Sound


• High-Frequency RF Ensures Clear And Sharp Reception


• Built-In FM Radio With Auto Search Feature


• Padded ear cushions and adjustable headband provide a custom and comfortable fit

Included in the box:

• Wireless Headphones


• Transmitter


• Audio connection Cable (used for TVs, stereos, mp3 players, computers, and gaming systems)


• Microphone Cable (use to connect to a computer for web chatting)


• user guide